I have formatted a new lexar 16gb micro sd card to FAT32. When I plugged the usb card reader into my SUrface RT, it won’t mount and doesn’t shows up in Disk Management. However, the Microsd Card does work fine on my nexus 7 and other Android tablets. How can I fix the issues?
Unreliable SD card with Surface Windows RT is a known problem. Many users are fail to put their microsd card in the Surface machine and are considering returning it.
You can try format it into different type like NTSF or FAT and make sure the Windwos update is up to date. Hope Microsoft realse new updates for solve the issues soon.